Wireless Access

Is QOS enabled by default on Aruba Wireless controllers and Aruba Instants?

For what type of traffic.? By default, no.

I see default DSCP values?

For what type of traffic and what client device? We cannot answer any QoS questions unless we know those two things.

we just want to prioritize voice traffic.  dscp 46

Which device?

 

The controller/AP combination can certainly mark any traffic and put it into the high queue over the air, but the client must be capable of marking it back over the air, otherwise the QOS will be only one-sided.

For any wmm capable client (that is 11n or higher), the controller (or AP for instant) will map certain DSCP tags to wmm classes by default. The mapping is slightly off from the standard (google for 802.11e to dscp mapping) but the difference usually only results in a misclassification between VO and VI, so it will still work well enough for the majority of cases (plenty of clients also don't get it right either in the uplink direction)

 

You can check this yourself via the radio stats output, looking for tx and rx counts for WMM traffic

 

 

(zzzz) #show ap debug radio-stats ap-name ap radio 0 advanced  | include WMM
Tx WMM [BE]                         30523237
Tx WMM [VO]                         10463
Tx WMM [BE] Dropped                 76853
Tx WMM [VO] Dropped                 1
Rx WMM [BK]                         4341304
Rx WMM [BE]                         20748076
Rx WMM [VI]                         66054
Rx WMM [VO]                         2874320